英语词汇nonupgraded怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	nonupgraded
释义	nonupgraded upgradevt. 提升；使升级；改良品种 n. 升级；上坡；上升 downgradevt. 使降低, 使降级 noncreditadj. 无学分的
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